html {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}
*::before, *::after {
  box-sizing: inherit;
}

.scene {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(transparent, rgba(31, 164, 152, 0.6)) 0 100%/100% 60%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 3% 70%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 7% 60%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 3% 47%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 26% 65%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 20% 50%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 12% 53%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 10% 40%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 24% 34%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 38% 35%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 24% 48%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 7% 30%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 2% 20%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 5% 4%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 10% 15%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 15% 8%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 20% 20%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 80% 36%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 84% 50%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 97% 50%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 85% 40%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 90% 54%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 50% 40%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 55% 49%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 48% 55%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 33% 45%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 80% 60%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 88% 70%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 30% 24%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 30% 10%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 15% 30%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 38% 3%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 68% 30%/0.2% 0.2%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 90% 32%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 85% 10%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 60% 16%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 88% 12%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 96% 5%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 75% 18%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.9) 70%, transparent 70%) 47% 14%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 54% 10%/0.2% 0.25%, radial-gradient(rgba(255, 250, 250, 0.5) 70%, transparent 70%) 53% 23%/0.2% 0.25%, linear-gradient(rgb(20, 21, 33), #022e4e, #03518a);
  background-repeat: no-repeat;
}
.scene .mountain {
  position: absolute;
  background: linear-gradient(#022b49, transparent);
  -webkit-clip-path: polygon(49% 0, 51% 0, 100% 100%, 0 100%);
          clip-path: polygon(49% 0, 51% 0, 100% 100%, 0 100%);
  border-radius: 50% 50% 0 0;
  z-index: 2;
  bottom: 0;
}
.scene .mountain::before, .scene .mountain::after {
  position: absolute;
  content: "";
  width: 100%;
}
.scene .mountain::before {
  height: 100%;
  right: 5%;
  background: inherit;
  -webkit-clip-path: inherit;
          clip-path: inherit;
  border-radius: inherit;
}
.scene .mountain::after {
  height: 15%;
  background: linear-gradient(rgba(255, 250, 250, 0.5), transparent);
}
.scene .mountain:nth-of-type(1) {
  width: 50%;
  height: 40%;
  left: -10%;
}
.scene .mountain:nth-of-type(2) {
  background: linear-gradient(#022e4e, rgba(20, 21, 33, 0.8));
  width: 60%;
  height: 50%;
  left: 10%;
  z-index: 3;
}
.scene .mountain:nth-of-type(3) {
  width: 50%;
  height: 65%;
  left: 40%;
}
.scene .mountain:nth-of-type(4) {
  background: linear-gradient(#022e4e, rgba(20, 21, 33, 0.8));
  width: 30%;
  height: 40%;
  right: -10%;
}
.scene .tree {
  position: absolute;
  width: 0.5%;
  bottom: 0;
  background: linear-gradient(#051b19, rgb(20, 21, 33));
  z-index: 3;
}
.scene .tree::before {
  content: "";
  position: absolute;
  width: 800%;
  height: 100%;
  background: #051b19;
  top: -5%;
  left: -350%;
  -webkit-clip-path: polygon(50% 0%, 0% 30%, 50% 30%, 0% 60%, 50% 60%, 0% 90%, 50% 90%, 100% 90%, 50% 60%, 100% 60%, 50% 30%, 100% 30%);
          clip-path: polygon(50% 0%, 0% 30%, 50% 30%, 0% 60%, 50% 60%, 0% 90%, 50% 90%, 100% 90%, 50% 60%, 100% 60%, 50% 30%, 100% 30%);
}
.scene .tree:nth-of-type(1) {
  right: 25%;
  height: 20%;
}
.scene .tree:nth-of-type(2) {
  right: 20%;
  height: 15%;
}
.scene .lights {
  height: 100%;
  width: 100%;
  animation: slide 15s ease-in-out infinite;
}
.scene .lights .borealis {
  position: absolute;
  width: 5%;
  height: 100%;
  bottom: 8%;
  filter: blur(60px);
  background: radial-gradient(rgb(31, 164, 152) 40%, transparent);
  opacity: 0.6;
}
.scene .lights .borealis:nth-of-type(1) {
  left: 0;
  animation: grow 30s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(2) {
  left: 20%;
  animation: grow 15s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(3) {
  left: 40%;
  animation: grow 30s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(4) {
  left: 60%;
  animation: grow 20s 3s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(5) {
  left: 80%;
  animation: grow 25s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(6) {
  left: 97%;
  animation: grow 20s 8s ease-in-out infinite;
}
.scene .lights .borealis:nth-of-type(7) {
  background: radial-gradient(rgb(157, 78, 221) 40%, transparent);
  transform: translateX(-200%);
  animation: slideFullRight 25s ease-in-out infinite;
  opacity: 0.3;
}
.scene .lights .borealis:nth-of-type(8) {
  background: radial-gradient(rgb(157, 78, 221) 40%, transparent);
  transform: translateX(-200%);
  animation: slideFullRight 25s 8s ease-in-out infinite;
  opacity: 0.4;
}
.scene .lights .borealis:nth-of-type(9) {
  left: unset;
  right: 0;
  transform: translateX(200%);
  background: radial-gradient(#035a99 40%, transparent);
  animation: slideFullLeft 18s 58s ease-in-out infinite;
}

@keyframes slide {
  0%, 100% {
    transform: translate(-2%);
  }
  50% {
    transform: translate(2%);
  }
}
@keyframes grow {
  50% {
    width: 2%;
    opacity: 0.4;
  }
}
@keyframes slideFullRight {
  from {
    transform: translateX(-200%);
  }
  to {
    transform: translateX(2000%);
  }
}
@keyframes slideFullLeft {
  from {
    transform: translateX(200%);
  }
  to {
    transform: translateX(-2000%);
  }
}